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Hi!I have tried searching google for my problem, but I can't seem to find the solution to my problem, even though there obviously are other people having the same problem (mostly in different tastes of Ubuntu). None of the solutions I saw on other sites is working for my system. The weirdest thing about this problem is this: Yesterday I installed Linux Mint 5 (Elyssa), and did no configuration of the audio, except choosing the audio-mixer to use under wine, to get music playing from Spotify. This night I wanted to try to upgrade from Elyssa to Felicia, but it went wrong, and I installed Elyssa from a CD again. This time, the problem described in the text under and in the topic-title came along, even though I haven't configured any audio-options (yet).

My problem is that when I am playing music (or any other sound), the sound is coming from both the laptop speakers and the external speakers or headphones plugged into the mini-jack.

This must be an old laptop, or?BecauseIntegrated 16-bit Sound Blaster Pro compatible audiodoes not exactly sound new to meUnfortunately I do not have any solution at handRun lspci in a terminal and post here (right click to copy)There may be some clue there

I thought the turning off of the speakers is done inside the card when it senses something is plugged in, independant of the operating system and the rest of the computer. If you dont mind wasting a few hours, try putting a non-Linux OS to see if the problem goes away, it will atleast help narrow it down a bit so you will know if it is a Linux issue or not.

Thank you for trying to help, guys. But after a couple of restarts, the problem fixed itself, and I have no idea what made it fix itself. Might just have been a problem when initializing the sound-card?

I have had the same problem on my toshiba satellite. It has the realtek HD audio card, and is using the default sound driver mint installed; i assume alsa. What was causing it on my system (Elyssa KDE) was actually the KMix utility. My output level shown in the mixer window was turned up for 'front' as well as 'headphone'. Front corresponds to my built in speakers, and my externals are plugged in my headphone jack. If it happens again try turning down your front and/or setting your headphone jack as master.Hope this can help someone..